Specification for the supply of new 4X4 backhoe/loaders (tlb)

A bid for the supply and delivery of pneumatic tired four wheel drive backhoe/loaders. The operating mass should not be less than 7800 kg. These will be used for operating on small excavations and loading site. The machine must be powered by a Diesel engine with a power output of at least 68 kW. The TLB should be able to operate efficiently at all places within South Africa.

The TLB must be powered by a Diesel engine with a minimum power output of at least 68 kW.

The machine will operate at altitudes ranging from 0m to 2500m above sea level within a temperature range of -50C to 450C. The engine must have a derating altitude above 2500m. Turbo charger and pump settings must be set for optimum performance under the operating conditions mentioned. The engine should be suitable for operation with RSA specification diesel fuel (500ppm).
Engine Manufacturer.....................................................................................

Engine Breathing shall be through a dry type air cleaner with cyclonic pre cleaner, serviceable main (primary) element, serviceable safety (secondary) element, and an air cleaner service indicator (informer type) mounted directly at the inlet duct.

Details of air cleaner ............................................................................................................................................................................................................................................................................................................................................

Full flow disposable fuel and lubricating oil filters as well as a fuel/water separator must be fitted. The separator must be positioned where it can be easily seen, easy to inspect and to clean and drain if necessary.

1.4 Component Breathing SystemsAll components breathers eg. transmission, differential, hydraulic tank and fuel tank shall be fitted with filtration systems designed to prevent the entry of contaminants.
Breathing system maintenance procedures shall be included in the maintenance manual.
Which components are fitted with breathers:
..................................................................................................................................................
..................................................................................................................................................
Are all of these breathers fitted with suitable filtration systems? If not, which are not?
......................................................................................................................................................................
....................................................................................................................................................................
What does a scheduled maintenance of breather filtration system involve (eg. washing, Replacement)
......................................................................................................................................................................
....................................................................................................................................................................

1.5 Cooling SystemA tropical type engine cooling system ensuring full load operation throughout the year at any place in the territory of the South Africa.
Coolant Type:.......................................................

1.6 Engine Monitoring SystemThe engine should be fitted with a monitoring system. In case of a malfunction, the system should warn the operator using a buzzer and a warning light. It must keep track of features such as oil pressure, water/oil temperature, water level and transmission temperatures.
Details of Monitoring Device......................................................................................................
...................................................................................................................................................
...................................................................................................................................................
...................................................................................................................................................

An efficient electrical system should be installed in order to insure effective operation of the machine. The electrical components must include the following standard features. LED amber lights must be installed on the sides and on the roof of the cab. . A total of 10 Led clusters will be required to be installed. The clusters must contain three (3) X 1-watt LEDs each.
NB: the final placement and installation of the LED clusters will be discussed by Fleet Management and the successful bidder.

The grader should be fitted with a lockable, steel, two door, fully enclosed, all round vision cab (complying with the ISO 5006:2006 / Correction 1:2008). The cabin must be protected by ROPS (Roll Over Protection System) that conforms with the ISO 3471:2008 standard. The cabin must be fitted with an air-conditioner and rubber floor mat. It must be fitted with safety glass and rear-view mirrors. The operator’s seat should be suspended and adjustable. The operator should have access to all controls. All electronic warning signals should be visible to the operator at all times. The operator should be able to view the hour meter, oil and temperature gauges when needed.

Does cab comply to all standards and specification…................................................................(Yes/No) Enclosed.....................................................................................................................................(Yes/No)

Access to all controls...............................................................................................................(Yes/No)
No of Occupants.........................................................................................................................(Yes/No)

A heavy duty Powershift transmission and torque converter or Powershuttle transmission with travel speeds of up to 35 km/h is required. The tractor loader backhoe shall be driven from site to site for distances up to 50 km and the drive system shall be designed for this operation. A selectable, between 4x4 and 4x2 transmission will be preferred.

Full details of TLB drive system (engine to wheels):

……………………………………………………………………………………………………………………….

……………………………………………………………………………………………………………………….

……………………………………………………………………………………………………………………….

Powershift transmission …………………………………..(Yes/No)

Powershuttle transmission …………………………………..(Yes/No)

Maximum distance the machine may be driven without damaging the drive system:

Number of driving wheels: .........................................................................................................
Can the equipment be switched between 4x4 and 4x2 mode: ………………………...(Yes/No)

The hydraulic system must provide for simultaneous operation of more than one control at a time without loss of speed of any one action. Self regulating pumps providing automatic adaption of working speed and power to job conditions are required.

Number of hydraulic pumps: …………………………………………………………………………
Type of pumps: …………………………………………………………………………………………

……………………………………………………………………………………………………………….

WORKING ATTACHMENTS

8.1 Backhoe

The backhoe shall be capable of a digging depth of at least 4300 mm with a bucket digging force of at least 45 kN. Dipper arm crowd force must be at least 30 kN. A general purpose bucket with a heaped capacity of at least 0.18m³ is required.

Digging depth…………………………………………...mm

Bucket digging force…………………………………....kN

Arm crowd force………….……………………………..kN

Bucket capacity…………………………………………m3

Details of backhoe: ……………………………………………………………………………………………..

……………………………………………………………………………………………………………………….

Can a “4 in 1” bucket be supplied…………….…………………..………….(Yes/No)

8.2 LoaderThe loader shall have a general purpose bucket of at least 0.9m³ heaped, a dump clearance of at least 2500 mm at maximum bucket discharge angle and a dump reach at this height of not less than 750 mm.

Forklift attachments should also be fitted able to lift a load of at least 1700 Kg. The forklift attachment shall permanently fitted to the equipment and allow to be folded for storage behind the bucket. The working length of the forks shall be of adequate length to allow for the safe lifting of loads such as pallets.